Know all about Siltstone and Banded iron formation properties here. All properties of rocks are important as they define the type of rock and its application. Siltstone and Banded iron formation belong to Sedimentary Rocks.Texture of Siltstone is Clastic whereas that of Banded iron formation is Banded, Trellis. Siltstone appears Rough and Banded iron formation appears Layered, Banded, Veined and Shiny. The luster of Siltstone is dull while that of Banded iron formation is earthy. Siltstone and Banded iron formation are available in brown, red, reddish brown colors. The commercial uses of Siltstone are raw material for the manufacture of mortar, soil conditioner and that of Banded iron formation are as a touchstone, cemetery markers, creating artwork.